1, pay attention to the accurate size of the door frame, weld it in place, ensure that it is horizontal and vertical, and the welding point should be flat, and correct it with a level and a hammer tool. (Pay attention to welding deformation, the influence of heating on metal, and control the degree of shrinkage deformation)

2. When installing wood plywood, self-tapping screws should not be sunken. If the frame is triangle iron, it is suggested to hang aluminum-plastic plate directly and buy a slightly thicker aluminum-plastic plate, such as 4 mm thick, to ensure the smooth and beautiful construction surface; If it is absolutely feasible to stick the back with a wooden splint, fix it with a self-tapping screwdriver.

3. If the column is a square column, the aluminum-plastic plate needs to be slotted and folded, and then sealed. If it is a column, you need to bend the aluminum-plastic plate first, and then stick the seam. (Generally, the keel base is made of aluminum square pipe, and then the aluminum-plastic plate is installed, fixed with angle code, and the joints are bonded with glue. )

Extended data:

Please refer to the decoration construction technology of aluminum-plastic plate for the construction method of aluminum-plastic plate door head.

Process flow measurement and setting out → Check embedded parts and install post-embedded parts → Metal frame installation → Lightning protection connection → Anti-corrosion treatment → Fire prevention and insulation installation → Metal panel installation → Sealing and glue injection → Water spray test → Surface cleaning.

Measuring and setting out: Re-measure all datum control lines of curtain wall construction from structural elevation, axis control points and lines. Pay-off should be in accordance with the design requirements and frame size, first in the first floor of the ground, wall layout control points, lines, and then use theodolite or laser plumb instrument in the curtain wall Angle of Yin and Yang, center vertical control line and facade center control line, and fixed on the structural steel hanger heavy hammer as construction control line.

Then use level gauge and standard steel rule to release the horizontal elevation control line of each layer. Finally, according to the design details and the released vertical, center and elevation control lines, the installation position lines of horizontal and vertical frames pop up. Check the embedded parts and install the rear embedded parts: during the structure construction, the embedded parts have been embedded in the structure according to the position map of the embedded parts provided by the design.